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authorChristoph Hellwig <hch@lst.de>2010-09-16 20:51:46 +0200
committerJens Axboe <jaxboe@fusionio.com>2010-09-16 20:52:58 +0200
commitdd3932eddf428571762596e17b65f5dc92ca361b (patch)
tree57cec5ae2f862037f78b7e993323d77955bb6463 /drivers/block/drbd
parent8786fb70ccb36c7cff64680bb80c46d3a09d44db (diff)
downloadop-kernel-dev-dd3932eddf428571762596e17b65f5dc92ca361b.zip
op-kernel-dev-dd3932eddf428571762596e17b65f5dc92ca361b.tar.gz
block: remove BLKDEV_IFL_WAIT
All the blkdev_issue_* helpers can only sanely be used for synchronous caller. To issue cache flushes or barriers asynchronously the caller needs to set up a bio by itself with a completion callback to move the asynchronous state machine ahead. So drop the BLKDEV_IFL_WAIT flag that is always specified when calling blkdev_issue_* and also remove the now unused flags argument to blkdev_issue_flush and blkdev_issue_zeroout. For blkdev_issue_discard we need to keep it for the secure discard flag, which gains a more descriptive name and loses the bitops vs flag confusion. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/block/drbd')
-rw-r--r--drivers/block/drbd/drbd_int.h3
-rw-r--r--drivers/block/drbd/drbd_receiver.c2
2 files changed, 2 insertions, 3 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 352441b..c2ef476 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -2321,8 +2321,7 @@ static inline void drbd_md_flush(struct drbd_conf *mdev)
if (test_bit(MD_NO_BARRIER, &mdev->flags))
return;
- r = blkdev_issue_flush(mdev->ldev->md_bdev, GFP_KERNEL, NULL,
- BLKDEV_IFL_WAIT);
+ r = blkdev_issue_flush(mdev->ldev->md_bdev, GFP_KERNEL, NULL);
if (r) {
set_bit(MD_NO_BARRIER, &mdev->flags);
dev_err(DEV, "meta data flush failed with status %d, disabling md-flushes\n", r);
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 081522d..df15e7f 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -975,7 +975,7 @@ static enum finish_epoch drbd_flush_after_epoch(struct drbd_conf *mdev, struct d
if (mdev->write_ordering >= WO_bdev_flush && get_ldev(mdev)) {
rv = blkdev_issue_flush(mdev->ldev->backing_bdev, GFP_KERNEL,
- NULL, BLKDEV_IFL_WAIT);
+ NULL);
if (rv) {
dev_err(DEV, "local disk flush failed with status %d\n", rv);
/* would rather check on EOPNOTSUPP, but that is not reliable.
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